University of California
Hot! Hot! Hot!
Calories are not tiny creatures that sew your clothes tighter every night, but what are they? A science lesson, presented at multiple levels, has learners experiment with heat, heat transfer, and graph the function over time....
University of California
You Are What You Eat: Testing for Organic Compounds in Foods
We have all heard that we are what you eat, but what are we eating? An informative lesson opens with a discussion of the foods pupils have recently eaten. Then, young scientists perform four experiments on seven...
Teach Engineering
The Great Pacific Garbage Patch
The Great Pacific Garbage Patch is one of several garbage patches around the world where garbage accumulates naturally. As part of a GIS unit that combines oceanography, environmental science, and life science, class members investigate...
Teach Engineering
Measuring Surface Tension
How do you measure surface tension? The fifth installment of a nine-part series is an experiment where young scientists use tubes of different sizes to measure surface tension. They calculate the average and standard deviation of the...
National Institute of Open Schooling
Chemical Arithmetics
Substances with the same empirical and molecular formula must be differentiated by their structural formula. Part two in a series of 36 has pupils using chemical formulas to calculate how much of a compound is present in a given...
Chymist
How Do We Affect the Quality of Our Atmosphere
Explore the makeup of the earth's atmosphere. Using the set of specific experiments, pupils examine the main elements and compounds present in the atmosphere. Their study extends to investigate the effects of atmospheric...
National Institute of Open Schooling
Ionic Equilibrium
Scientific studies show the older we get, the more acidic we become. The activity extensively teaches high schoolers about acids and bases. By the end of the 14th installment of 36, they can define and explain three concepts of...
Chicago Botanic Garden
Climate and Forest Ecosystem Services
Forests, through sequestration, capture excess carbon dioxide in our atmosphere and store it, aiding in climate change. The third installment in a four-part series on how climate impacts forests explores carbon sequestration....
Teach Engineering
Basically Acidic Ink
If you don't want to drink red cabbage juice, here's another use for it—a decoder! Using vinegar and ammonia-based window cleaning liquids as invisible inks, scholars create designs in the second lesson of the series. Red cabbage juice...
Cornell University
Discovering Enzymes
Explore the function of enzymes through a series of lab investigations. Learners use household enzymes such as hydrogen peroxide to model the role of enzymes. The enzymes break down proteins with and without a catalyst.
Cornell University
What Is Rust?
Why do metals rust differently? Scholars experiment with metal combinations in a hands-on activity. They create unique environments with different metals and compare the rate and amount of rust for each.
Beyond Benign
In a Lather
Time to come clean! Scholars continue preparing the shampoo they created in the previous two lessons. The purpose of this stage is to calculate the perfect amount of additive to make the shampoo lather.
Cornell University
Spectral Analysis with DVDs and CDs
Build a spectrometer to analyze properties of light. Scholars examine the spectrum from CDs and DVDs from two different light sources. Using the spectrum, they work to identify different elements.
Royal Society of Chemistry
A Solid-Solid Reaction between Lead Nitrate and Potassium Iodide
Why is it so difficult to make two solid compounds react? Investigate the concepts of particle collisions and rate of reaction using a quick demonstration. The colorful experiment features two plain, white solids combining to form a...
National Nanotechnology Infrastructure Network
Lab 2: Nanocatalysts Clean Your Car Emissions
Surface area certainly surfaces as a variable for chemical reaction rates. Scholars perform an experiment to discover how the size of catalysts affect the rate of a chemical reaction. They record their results in tables and graphs to...
National Nanotechnology Infrastructure Network
Synthesis of Nickel Nanowires
It's all about the scale—they're not just wires, they're nanowires! The second lesson of the series builds on the oxidation-reduction experiment in the first lesson. Scholars synthesize a sample of nanowires using electrolysis. As they...
Newspaper Association of America
Cereal Bowl Science and Other Investigations with the Newspaper
What do cereal, fog, and space shuttles have to do with newspapers? A collection of science investigations encourage critical thinking using connections to the various parts of the newspaper. Activities range from building origami seed...
American Museum of Natural History
What do you Know About Climate Change?
Test the class's knowledge of the key components of climate change. A 10-question online quiz asks learners about weather, climate, greenhouse gases, and several other concepts related to climate change. Interactive and easy for...
Chicago Botanic Garden
Carbon, Greenhouse Gases, and Climate
Climate models mathematically represent the interactions of the atmosphere, oceans, land, sun, surface, and ice. Part two in the series of four lessons looks at the role greenhouse gases play in keeping Earth warm and has participants...
Curated OER
Activity #8 U Are So Dense!
Students watch as the teacher demonstrates: if a single liquid is placed in a U-shaped tube, the level of liquid on both sides are the same. When the mass is greater on one side than the other, liquid is pushed from one side to the...
Curated OER
Heat of Vaporization of Liquid Nitrogen
Students determine the heat energy needed to vaporize (boil) one gram of liquid nitrogen.
Curated OER
Determining Liquid Densities
Students practice determining liquid densities in a short, hands-on lab activity. Students use a graduated cylinder to measure out 100 milliliters of a liquid, find its mass using a balance, and record measurements in a data table....
Curated OER
Worksheet 1
In this worksheet, students calculate the density, molar mass, and volume of given word problems. Students also calculate the partial pressure of the gases given in the particular problem.
Curated OER
How is a REDOX Reaction Used to Power a Car?
Young scholars explore electrolysis and Redox reactions. In this exploratory lesson students demonstrate an example of electrolysis and how it brings on a chemical change.
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